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Proton alternatives & similar sites

Proton: Privacy by default — 16 websites ranked by shared content topics, category and on-page relevance.

Each result shows its full tech stack, contacts and AI-policy — not just a name · Browse all sites in Information And Network Security →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
bitwarden.com ↗	100 match 49 shared linkers	Best Password Manager for Business, Enterprise & Personal \| Bitwarden	en	information-and-network-security	robotsllmsaihumans	emailphone	none
signal.org ↗	85 match 70 shared linkers	Signal >> Home	en	social-networking	robotsllmsaihumans	emailphone	none
haveibeenpwned.com ↗	53 match 39 shared linkers	Have I Been Pwned: Check if your email address has been exposed in a data breach	en	information-and-network-security	robotsllmsaihumans	emailphone	none
brave.com ↗	51 match 44 shared linkers	The browser that puts you first \| Brave	en	browsers	robotsllmsaihumans	emailphone	none
f-droid.org ↗	40 match 25 shared linkers	F-Droid - Free and Open Source Android App Repository	en	software-and-applications	robotsllmsaihumans	emailphone	full · 18
fastmail.com ↗	37 match 23 shared linkers	Email and calendar made better \| Fastmail	en	email	robotsllmsaihumans	emailphone	none
torproject.org ↗	36 match 40 shared linkers	Tor Project \| Anonymity Online	en	information-and-network-security	robotsllmsaihumans	emailphone	none
uservoice.com ↗	34 match 21 shared linkers	Customer Intelligence Platform \| UserVoice	en	business	robots llmsaihumans	emailphone	none
qwant.com ↗	34 match 16 shared linkers	Qwant - The search engine that values you as a user, not as a product	en	Webflow	robotsllmsaihumans	emailphone	none
1password.com ↗	33 match 19 shared linkers	Passwords, Secrets, and Access Management \| 1Password	en	information-and-network-security	robotsllmsaihumans	emailphone	none
telefonica.com ↗	32 match 17 shared linkers	Telefónica: compañía líder en telecomunicaciones	es	telecommunications-industry WordPress	robotsllmsaihumans	emailphone	none
duckduckgo.com ↗	30 match 44 shared linkers	DuckDuckGo - Protection. Privacy. Peace of mind.	en	internet-safety	robotsllmsaihumans	emailphone	none
element.io ↗	27 match 12 shared linkers	Element \| Secure collaboration and messaging	en	software-and-applications	robotsllmsaihumans	emailphone	none
deepl.com ↗	25 match 20 shared linkers	DeepL AI Platform: Translation, Voice & API	en	artificial-intelligence	robotsllmsaihumans	emailphone	none
blackarch.org ↗	24 match 11 shared linkers	BlackArch Linux - Penetration Testing Distribution	en	information-and-network-security	robotsllmsaihumans	emailphone	none
pcloud.com ↗	24 match 10 shared linkers	pCloud - Secure Cloud Storage for Files, Photos & Documents	en	data-storage-and-warehousing	robotsllmsaihumans	emailphone	none

How the match score works

Each match is a 0–100 similarity score — the higher it is, the more two sites resemble one another. It’s computed automatically from our own crawl data (never from what a site says about itself) by combining several independent signals, so a high score means several of them point the same way:

shared topics how many of the same fine‑grained content topics (IAB sub‑categories) both sites cover — the main signal.
same category whether they sit in the same business / industry category.
content & title how closely their titles and page descriptions line up in wording and meaning.

No single signal decides the result — they’re blended together. Treat the score as a way to rank candidates rather than an absolute percentage; the chips on each result show which signals contributed.